Environmental friendly anti-microbial adhesion agents for anti-fouling paints and anti-fouling paints containing them

Abstract

An ecologically compatible anti-microbial-adhesion agent is described, which is particularly suitable for use in anti-fouling paints, preferably for boats, characterized in that it comprises a compound selected from eugenol, vanillin, benzaldehyde substituted with one or two substituents selected from the groups —OH (hydroxy) and —OCH3 (methoxy), or any combination thereof. An anti-fouling paint is also described, particularly for boats, comprising the anti-microbial-adhesion agent mentioned above and other components selected from conventional biocides, solvents, resins, pigments, charges and fillings, and combinations thereof.

1. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 a resin in an amount ranging between 5-40 wt %, and 
 at least one conventional biocide selected from the group consisting of zinc pyrithione, copper pyrithione, zinc ethylene bis dithiocarbamate, tolylfluanide, dichlofluanide, 4,5-dichloro-2-N-octyl-4-isothiazoline-3-one, N′-tert-butyl-N-cyclopropyl-6-(methylthio)-1,3,5-triazine-2,4-diamine, and any combination thereof. 
 
     
     
       2. The antifouling paint according to  claim 1 , comprising at least one further component selected from the group consisting of solvents, pigments, filling charges and any combination thereof. 
     
     
       3. The anti-fouling paint according to  claim 1 , wherein the paint is an anti-fouling paint for boats. 
     
     
       4. The antifouling paint according to  claim 1 , wherein the anti-microbial-adhesion agent comprises a compound selected from the group consisting of vanillin, 4-hydroxybenzaldehyde, 3,4-dihydroxybenzaldehyde, 2,5-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, and any combination thereof. 
     
     
       5. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent in an amount of between 3% and 30% wt %, the ecologically anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, in combination with a resin in an amount ranging between 5-40 wt %. 
 
     
     
       6. The antifouling paint according to  claim 5 , wherein the anti-microbial-adhesion agent comprises a compound selected from the group consisting of vanillin, 4-hydroxybenzaldehyde, 3,4-dihydroxybenzaldehyde, 2,5-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, and any combination thereof. 
     
     
       7. The antifouling paint according to  claim 5 , comprising at least one further component selected from the group consisting of solvents, pigments, filling charges and any combination thereof. 
     
     
       8. The anti-fouling paint according to  claim 5 , wherein the paint is an anti-fouling paint for boats. 
     
     
       9. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 a resin in an amount ranging between 5-40 wt %, 
 at least one further component selected from the group consisting of solvents, pigments, filling charges and any combination thereof, and 
 between 10 and 45 wt % of a solvent. 
 
     
     
       10. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 a resin in an amount ranging between 5-40 wt %, 
 at least one further component selected from the group consisting of solvents, pigments, filling charges and any combination thereof, and 
 between 10 and 30 wt % of a pigment. 
 
     
     
       11. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 a resin in an amount ranging between 5-40 wt %, 
 at least one further component selected from the group consisting of solvents, pigments, filling charges and any combination thereof, and 
 between 3 and 30 wt % of filling charges. 
 
     
     
       12. A method of manufacturing an antifouling paint, the method comprising
 mixing an anti-microbial-adhesion agent in an amount between 3 and 30 wt %, the anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, with a resin in an amount ranging between 5-40 wt % and with at least a further component selected from the group consisting of conventional biocides, solvents, pigments, filling charges, and any combination thereof. 
 
     
     
       13. The method according to  claim 12 , wherein the anti-fouling paint is for boats. 
     
     
       14. A method of painting a boat, the method comprising applying to the boat an anti-fouling paint, wherein the anti-fouling paint is for boats and comprises:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, and 
 a resin in an amount ranging between 5-40 wt %. 
 
     
     
       15. A method of painting a boat, the method comprising applying to the boat, an anti-fouling paint, the anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 a resin in an amount ranging between 5-40 wt %, and 
 at least one conventional biocide selected from the group consisting of zinc pyrithione, copper pyrithione, zinc ethylene bis dithiocarbamate, tolylfluanide, dichlofluanide, 4,5-dichloro-2-N-octyl-4-isothiazoline-3-one, N′-tert-butyl-N-cycloprop-6-(methylthio)-1,3,5-triazine-2,4-diamine, and any combination thereof. 
 
     
     
       16. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 filling charges in an amount ranging between 3 and 30 wt %, and 
 at least one conventional biocide selected from the group consisting of zinc pyrithione, copper pyrithione, zinc ethylene bis dithiocarbamate, tolylfluanide, dichlofluanide, 4,5-dichloro-2-N-octyl-4-isothiazoline-3-one, N′-tert-butyl-N-cyclopropy-6-(methylthio)-1,3,5-triazine-2,4-diamine, and any combination thereof. 
 
     
     
       17. An anti-fouling paint comprising:
 an ecologically compatible anti-microbial-adhesion agent comprising a compound selected from the group consisting of vanillin and benzaldehyde substituted with one or two substituents selected from the group consisting of —OH (hydroxy) and —OCH 3  (methoxy), and any combination thereof, 
 filling charges in an amount ranging between 3 and 30 wt %, 
 at least one further component selected from the group consisting of solvents, pigments, resins and any combination thereof, and 
 a resin in an amount ranging between 5-40 wt %.